System and method for protecting infrared raster of track

Abstract

The invention discloses a system and method for protecting an infrared raster of a track. The system comprises an infrared raster detecting system, an infrared raster operating cabinet, an infrared raster protecting and controlling cabinet and a shielded door controlling cabinet, wherein the infrared raster detecting system is arranged between a shielded door of a train and a train door and comprises a plurality of infrared transmitters and a plurality of receivers, and the infrared raster detecting system is connected with the infrared raster protecting and controlling cabinet through junction boxes; the infrared raster protecting and controlling cabinet is connected with the infrared raster operating cabinet and the shielded door controlling cabinet respectively. Infrared raster detection is adopted, interference of ambient light is avoided, a facula is slightly large and easy to align, and the transmitters and the receivers are crosswise mounted in a backward sequence, so that interference is effectively avoided and can be accurate to each of carriages, and the operation safety of the train is effectively improved; the whole system adopts modular design, so that the system is not only strong in logical processing capacity, but also is simple in wiring; through the use of an optical fiber access port of a PLC module, mutual connection of the system at all the stations can be realized through optical fibers, and an Internet of Things type system is constituted.

Description

technical field [0001] The invention relates to track protection technology, in particular to a track infrared grating protection system and method. Background technique [0002] With the continuous progress of society, major cities across the country are applying for and planning to build urban rail transit systems, such as subways, light rails, and trams; in densely populated large cities, urban rail transit has gradually become a major urban public transportation system. Especially during the rush hours of commuting on working days, the flow of people is too large, which will easily cause congestion and convection when passengers get on and off the bus, and it is easy to cause people and objects between the doors and screen doors. The higher the risk, it brings safety hazards to rail transit operations. At present, there are mainly the following problems in the application of rail protection technology: (1) Laser detection is used. This detection method has a small spot a...

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Problems solved by technology

[0002] With the continuous progress of society, major cities across the country are applying for and planning to build urban rail transit systems, such as subways, light rails, and trams; in densely populated large cities, urban rail transit has gradually become a major urban public transportation system. Especially during the rush hours of commuting on working days, the flow of people is too large, which will easily cause congestion and convection when passengers get on and off the bus, and it is easy to cause people and objects between the doors and screen doors. The higher the risk, it brings safety hazards to rail transit operations. At present, there are mainly the following problems in the application of rail protection technology: (1) Laser detection is used. This detection method has a small spot and is not easy to detect at long distances. Accurate, the light spot shifts under the vibration of the vehicle, the installation flexibility is poor, and it is not easy to install at the arc station. Although it can detect the whole train, it cannot accurately detect each carriage. Although the detection distance is long, it has high energy and is easy to approach Passengers at the transmitting end are injured by laser radiation; (2) The control cabinet components are mainly composed of power supply and time control cabinets, with limited logic processing capabilities, cumbersome wiring, and very troublesome for adding functions or replacing components; (3) There is no eye-catching sound and light The alarm device is easy to cause the driver's lack of attention; (4) The systems of each station are independent of each other and do not constitute an Internet of Things system, and the alarm signal is not coordinated into the vehicle dispatching operation control center

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